Repo.insert(changeset)
returns {:ok, struct}, but struct has no preloaded associations.
Am I forced to select query to preload it's associations? Or can I avoid a useless query somehow?
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Afshin Moazami
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icra
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You are going to have to call `Repo.preload/3` yourself. – Justin Wood Jan 19 '18 at 22:14
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|> Repo.insert |> Repo.preload(:posts) like this? – icra Jan 19 '18 at 22:20
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1Yup, like that. BUT, you just inserted the recorded, it is most likely there is nothing to preload. :) So you can also explicitly set the field to an empty list, if you want to. – José Valim Jan 19 '18 at 22:39
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4If you use `Repo.insert!`, yes. If you just use `Repo.insert`, you are going to have to unwrap the tuple first. @JoséValim, It could `belong_to` another record, so it is possible there is something to preload. – Justin Wood Jan 19 '18 at 23:10
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or a `cast_assoc` – ryanwinchester Jan 20 '18 at 05:13
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@ryanwinchester `cast_assoc` would only cast a related record but not preload it when inserting. – ashraf Jan 20 '18 at 10:43
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@ashraf no i was replying to José and Justin. There would be something to preload even if it wasn't `belongs_to`, if you were using `cast_assoc` on it – ryanwinchester Jan 20 '18 at 18:56
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@ryanwinchester apologies mate, yeah, in this case you're right :) – ashraf Jan 21 '18 at 00:53